stimpson



(No Model.)

2 Sheet s-Sheet 1.v

B. B STIMPSON & E. B. STIMPSON, Jr.

I PERFORATING MACHINE. No. 345,189.

Patented July 6, 1886.

N. PETERS. PhOIn-Lilhognlphcr, Washington. D. C.

(No Model.) 2 sheet -sn eet 2.

E. B. STIMPSON & E. B. STIMPSON; Jr. PERFORATING MACHINE.

No. 345,189. Patented July 6, 1886.

Wiinewes. WW

IJNiTED STATES Futon.

PAT NT EDI/VIN B. STIMPSON AND EDWIN B. STIMPSON, JR, OF BROOKLYN, N. Y.

PERFORATING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 345,189, dated July 6,1886.

Application filed January 12, 1586. Serial No. 183,380. (No model.) i

punch head or holder carrying a row or line of punches, and astripper-plate or stripper through which these punches work. In suchmachines it is often desirable to render certain of thepunches'inoperative by enabling them to rise in the punch-holder whenthey strike the material, so that such punches will not perforate thematerial.

Our invention relates to the means whereby the punches may be held sothat all will perforate the material presented to them, or so that anyone or any group or groups of punches may be released so as to rise andbe inoperative when it or they strike the material.

The object of our invention is to provide means for holding down andrendering the punches operative, which are carried by and movablerelatively to the punch-holder, and are of such nature that by simpleadjustment any single punch or group of punches at any point in the rowor line may be released and allowed to rise so as to be inoperative.

Our invention consists in the combination, with avertically-reciprocating punch-holder having a flange or punch-plateprojecting at its front and perforated for the reception of punches, ofkeys or blocks which are fitted to and carried by the punch-holder abovethe punch-plate, and which are accessible at the front of thepunch-holder, and may be moved laterally backward, so as to bring themout of range of the punch-heads to permit any one or more of the punchesto rise, or forward, to bring them over the punch-heads, to hold thepunches fast in the holder and render them operative. Thekeys themselvesmay be connected with the punch-holder, so that they will'be preventedfrom rising; or we may employ locking devices, hereinafter described,which are carried by and adjustable relatively to the punch-holder forpreventing the rising of the keys.

The invention also consists in the combination,with the punch-holder andkeys or blocks adjustable as above described, of a verticallymovablelocking-bar above the keys or blocks,

serving to'hold them in either of the two positions to which they may beadjusted.

O'urinvention also includes other minor combinations of parts,hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a transverse vertical sectionof a punchholder embodying our invention, and a stripperbeam, and astripper and die, in connection with which the punches operate. Fig. 2is a sectional view similar to Fig. 1 of the punchholder andappurtenances alone, and upon a larger scale. 7 Fig. 3 is a front viewof the punch-holder and appurtenances upon the same scale as Fig. 2; andFigs. 4 and 5 are sectional views of punch-holders and appurtenancesshowing modifications of our invention.

Similar letters of reference designate corresponding parts in all thefigures.

In order to illustrate our invention, we have in the drawingsrepresented parts of such a machine as is shown in United States PatentN 0. 313,383, granted March 3, 1885, to

Edwin B. Stimpson, and we have employed the same letters of reference asthose used in the said patent to indicate corresponding parts.

E designates the cross-head, which is reciprocated in the usual way uponupright guides, (not here shown,) and to which the punchholder G issecured by screws 9 or otherwise. Thepunch-plate Gissecuredinachannehgflin a flange or projecting portion, 9 of thepunchholder, and has projecting downward from it a row or line ofpunches, H, which work through a stripper or stripper-plate, I, attachedto a strippenbeam, J.

O designates the die over which the material to be perforated is fed,and which is provided with holes or openings at to receive the punchesH.

As our invention relates only to the construction of the punch-holderand its appurtenances, we will now particularly describe these parts.The front of the punch-holder G is channeled or recessed at and in suchchannel or'recess above the punch-plate G are arranged themeans wherebythe punches 11 are held down and made operative. These means consist ofa number of keys or blocks, d, arranged side by side, and the form ofwhich is shown in Figs. 1 and 2, and a locking-bar, 5 J, arranged abovethe keys or blocks. These parts are all carried by the reciprocatingpunch-holder. The channel or recess in the punch-holder G is deepenough, and the keys or blocks d are of such length that they may beslid laterally backward, as shown in Fig. 2, so that they will notoverlap the punchheads, and will permit the punches to rise when theycome down on the paper or material, or forward, so that they willoverlap the punch-heads, as shown in Fig. 1. and prevent the punchesfrom so rising. The locking-bar J has on the under side a tooth or rib,6, extending lengthwise thereof, and the keys or blocks d have each twonotches, ff, with one or the other of which the tooth 6 will engage whenthe bar J is pressed down. The bar J is carried in the punch-holder andis moved relatively thereto by means of camlevers j, (shown in Fig.3,)which are fulcru med at j to the punch-holder G, and have each acam-shaped slot, j, engaging a stud, on the bar J. The locking-bar J hasat the back a dovetailed groove, h, engaging a tongue, h, on thepunchholder, and which prevents the locking-bar from being freed fromthe punchholder by a lateral movement, as the bar J must beslidlengthwise into engagement with the tongue h on the locking-bar.

We have shown the keys or blocksdas pro vided with notches d, with whicha hooked wire or other implement may be engaged for pulling them forwardover the punches, or they may be be pulled forward by the fingers. Theyhave each an upward projection, f at the back,which, by engaging the barJ ,-as shown in Fig. 1, prevents them from being drawn too 1 farforward. The keys or blocks d also have notches or grooves d*,engagingatongue or rib, h, on the punch-holder G, and which prevent 45 the keysor blocks d from being tilted upward when an attempt is made to drawthem forward.

When all the punches are operative,the 1ock-' ing-bar J is down,with itstooth or rib 0 in engagement with the notches f in the keys (1, as shownin Fig. 1. When itiis desirable to render any punches inoperative, thebarJ is released and rises, and the keys d, overlapping such punches,arethen pushed in, as shown in Fig. 2, the bar J being there raised, andthe bar'J is then brought down. The tooth or rib e of the locking-bar Jthen engages the notchesf of all the keys d thus pushed in, and thenotches f of all which are left in their normal or outermost position,thereby looking all the keys in place.

We have in Fig. 3 represented the keys d as very narrow, one serving foreach punch; but obviously they might be each broad enough to cover two,three, or more punches.

In lieu of the vertically-movable locking-bar J, above described, we mayemploy for locking the keys or blocks d a series of levers, O, fulcrumedat 0 in the punch-holder G, as shown in Fig. 4. The lower ends of thelevers 0 engage notches or recesses f 3 in the keys or blocks d, and theparts may be so fitted that a slight force must be exerted on the leversO to bring the keys d forward over the punches H. The bearing-point ofthe levers on the keys will then be directly below the fulcrum o, andthe keys will be locked to prevent their rising.

" Instead of employing the sliding keys d,the levers O themselves may bearranged to bear on the heads of the punches H, and themselves formthekeys, as shown in Fig. 5. The levers 0 may swing inward to releasethe punches H and allow them to rise, and in order to prevent the leversfrom swinging inward accidentally we may provide springs n, which offerslight resistance to such inward movement of the levers.

What we claim as our invent-ion, and desire to secure by Letters Patent,is-

1. The combination,with a vertically-reciprocating punch-holder havingat the front a projecting flange or punch-plate perforated forthe'reception of punches, of keys or blocks which are fitted t0 andcarried by the punchholder above the flange or plate, and which areaccessible at the front of the punch holder, and may be moved laterallybackward so as to bring them out of range of the punch-heads to permitthe punches to rise in the holder, or forward over the punch-heads so asto hold the punches fast in the holder and render them operative,substantially as herein described.

2. The combination,with a vertically-reciprocating punch-holder havingat the front a projecting flange or punch-plate perforated for thereception of punches, of keys or blocks which are fitted to and carriedby the punchholder above the flange or plate, and which are accessibleat the front of the punch-holder, and may be moved laterally backward orforward, so as to bring them out of range with or over the punch-heads,and locking devices, substantially as described, movable relatively toand carried by the punch-holder, for preventing the rising of the keysor blocks in the punch-holder when they are adjusted over the punches,substantially as herein described.

3. The combination, with a punch-holder having a punch-plate projectingfrom its lower portion and perforated for the reception of punches, ofkeys or blocks above the punchplate,which may be slid laterally backwardor forward to bring them out of range of the punch-heads topermit anyone or more punches to rise, or over the punch-heads to hold them all inoperative positions, and a verticallymovable locking-bar carried by thepunchholder above the keys or blocks, and serving to hold the keys orblocks in either of the two positions to which they may be adjusted,substantially as herein described.

4. The combination, with a punch-holder and its row of punches, of keysor blocks above the punches, and each having two notches, f f, and avertically-movable locking-bar provided with a tongue or rib forengaging said notches in either position of the keys or blocks, 5substantially as herein described.

5. The combination, with the punch-holder and its row of punches, of thekeys or blocks above the punches, adapted to be shifted forward orbackward to cover or uncover the IO punch-heads, and each having a notchin its front portion,whereby it may be pulled forward, and avertically-movable locking-bar above the keys or blocks, and serving tohold them in either of their two positions, substan- 1'5 tially asherein described.

6. The combination, with a punch-holder and its row of punches, of thekeys or blocks above the punches, adapted to be shifted forward orbackward to cover or uncover the punch-heads, and havingatongue-and-groove connection at their back ends with the punchholder,whereby they are prevented from tilting forward, and avertically-movable locking-bar above the keys and serving to hold themin either of their two positions, substantially as herein described.

7. The combination, with a punch-holder able locking-bar above the keysor blocks, de

pending downward in front of the projections f, and serving to lock thekeys or blocks in either of their two positions, and to prevent theirwithdrawal from the punch-holder, substantially as herein described.

8. The combination, with a punch-holder and its low of punches, of keysor blocks above the punches, and adapted to be shifted forward orbackward to cover and uncover the punch-heads, a11d a vertically-movablelocking-bar above the keys or blocks, serving to lock them in either oftheir two positions, and having a tongue-and-groove connection at itsback with the punch-holder,whereby it is held against lateraldisplacement therefrom, substantially as herein described.

EDWIN B. STIMPSON. E. B. STIMPSON, J R.

Witnesses:

FREDK. HAYNES, MINERT LINDEMAN.

